stellar labs 555-19550 User manual

Instruction Manual
140 Watt Active
SoundReinforcement
SpeakerSystem
15”Woofer
Tuned ported enclosure
CompressionHornTweeter
3-input mixeramplifier
Lineoutput
35mm polemount
Rugged ABScabinet
Built incarryhandle
Model #555-19550
MCM Electronics
650CongressParkDrive
Centerville,Ohio 45459
www.mcmelectronics.com
©2012MCM, aPremierFarnell Company

SafetyInformation
Thelightningbolt within
atriangle isintendedto
alerttheuserto the
presenceof un insulated
dangerousvoltage levels
within theproduct’s
enclosure.
Thisvoltage may be of
sufficientmagnitude to
constitute an electric
shock risk.
Toreducetherisk of electric
shock, donot removecoverof
thisdevice. Therearenouser
serviceable partsinside. Refer
servicingonly to qualified
servicepersonnel.
Theexclamation point
within atriangle is
intended toalertthe
userto important
operatingand
maintenance(servicing)
instructionsin the
literatureaccompanying
theappliance.
SafetyPrecautions
•Readandretain theseinstructions
•Follow all instructionsandheed warnings
•Donot usethisdevicenear water
•If thesurfacebecomesdirty, clean only with drycloth, donot usesolventsor
thinners
•Install in accordancewith themanufacturer’sinstructions
•Donot block ventilation openings
•Donot installnear heatsourcessuch asradiators, heatregisters, stoves, orother
devicesthatproduceheat
•Donot defeatthesafety purposeof thegrounded plug. Thisplughas twoblades
andathirdgroundprong.Thewide blade orthirdprongareprovided foryour
safety. If theprovided plugdoesnot fit intoyouroutlet, consult an electrician for
replacementof theobsoleteoutlet
•Protectthepowercordfrombeingstressed attheplugs, conveniencereceptacles,
andwheretheyexit theamplifier
•Only useaccessoriesspecifiedby themanufacturer
•Unplugthedeviceduringlightningstorms orwhenunused foran extended time
•Referall servicingto qualifiedpersonnel
•Thisdevicemustnot be exposed towaterin any way. Noobjectfilled with liquids
shouldbe placed on apparatus
Important
Thesespeakers areintended forstationary useon flat, level andsolidsurfaces. Whenusing
with speakerstands, it istheresponsibility of theuserto be certain thestandiscapable of
supportingtheweightof thespeaker. When used on elevatedstages, whetherwith orwithout
speakerstands, careshouldbe given if placed closetothefrontedge of thestage, as
potentialrisk existsforspectators in closeproximity. Additionally, thesearenot intended for
flyinginstallations. They shouldnot be retrofitted with flyinghardwareforsupportabove
stages. Ultimately, it isthesoleresponsibility of theuserto determinesafelocation and
placementof thisorany speakersystem.

OVERVIEW
Thisversatilelineof prosound speakersystemsaredesigned tofill awidevarietyofneedsincludingsmall
venuesoundreinforcement, stageandstudiomonitoring,presentationandlectureuse,asacomponent in
alargersystem,orastand alonePA.Theyareperfectfor thetravelingDJ, karaokesystem,orfor a
permanentinstallationin aclubs,restaurants,housesofworship andmore.
Six availablemodelsinclude10",12"and15" sizes,in both active(amplified)andpassiveversions.All
modelsfeature: DurablemoldedABSplasticenclosure Highquality treatedconewoofers Hornloaded
titaniumcompressiontweeter 13/8"polemount Heavyduty integrated handles
•
Features:
•Ruggedamplifierwith 140W
RMSoutput
•Three input mixer,eachwith
independent levelcontrols
•Fixed lineleveloutput todaisy
chain asecondamplified
speaker
•Independent controlsfor
mastervolume,bass and treble
•Input #1and#2 accept
balancedXLRand¼"
microphonesignal
•Input #3acceptsbalanced XLR,
ortwounbalanced(summed
mono)linelevelsignal
•Lineoutput iseitherbalanced
XLRmaleor¼"female
•Selectable110V/220V
operation
•DetachableIECtypelinecord

EXPLANATION OFCONTROLS
1. 1/4" MicrophoneInput
Acceptsbalancedorunbalancedmicrophoneinputsignallevel.Levelof thisinputisadjustedbythe controlimmediately
tothe right.Ch1andCh2inputsfunctionexactlythe same.
2. XLRMicrophoneInput
Acceptsbalancedorunbalancedmicrophoneinputsignallevel.Levelof thisinputisadjustedbythe controlimmediately
tothe right.Ch1andCh2inputsfunctionexactlythe same.
3. Ch1Level
Controlslevelofsignalenteringeither 1/4"orXLRinput. Ch1andCh2levelcontrolsfunctionexactly the same.Notethat
the 1/4"andXLRinputonasinglechannelshouldnotbeusedat thesametime.
4. XLRLineLevel Input
Acceptsbalancedorunbalancedline levelinput.TypicalsourcesforthisinputmaybeanMP3,CDorDVD player,
keyboardorother electronicinstrument, computersoundcardormixingconsole output. Levelofthisinputisadjustedby
the controlimmediately tothe right.
5. Ch3Level
Controlslevelofsignalenteringeither RCAphonoorXLR input. Notethat the RCAandXLR inputonthischannelshould
notbeusedatthe sametime.
6. DualRCA LineLevel Input
Acceptsunbalancedline levelinput. Twoconnectionsareprovidetoaccommodatecommonconnectionsfromconsumer
stereoequipment, suchastapedecks,CDplayers,tunersandsimilar.Notethat thetwoinputsare internallysummed
mono.
7. MasterLevel
Providesadjustmentof the overall outputlevelofthe system.
8. TrebleControl
Provideshighfrequency adjustmentofthe overalloutputlevelof thesystem.Thiscontrolprovides±10dBadjustmentof
afrequency bandcenteredat 10KHz
9. Bass Control
Provideslowfrequency adjustmentofthe overalloutputlevelof the system.Thiscontrolprovides±10dBadjustmentofa
frequencybandcenteredat100Hz
10.XLRLineLevel Output
Providespre-amplified,balancedline leveloutput,unaffectedby the MasterLevelorBassandTreblecontrols.Thisis
idealfordrivingasecondamplifiedspeakerorinputonarecordingdevice.
11. 1/4"LineLevel Output
Providespre-amplifiedunbalancedline leveloutput,unaffectedbythe MasterLevelorBassandTreble controls.Thisis
idealfordrivingasecondamplifiedspeakerorinputonarecordingdevice.
12. Input Voltage Selector
Allowsselectionof110VACor220VACoperation.110VAC iscorrectsettingforuse inNorthAmerica,becertainthe
switchisinthe correctpositionpriortouse.
13. MasterPowerSwitch
Turnspowertothe internalamplifierONorOFF."–"representstheON position.
14. PowerFuseAccess
Accepts5mm (dia)x20mm(L)fuse.Onlyreplace fusewiththe exactsame size.With110VACsupplyvoltage,correct
fusesize is555-10600–2.5A,555-10601–4A,555-10602–5A,all slowblowtype.
15. PowerCordInlet
Forconnectionofsuppliedpowercord. Thisconnectionacceptsindustry standardIECtype cords.
Specifications
Model Woofer Compression Tweeter Power Output Frequency Response Power Requirements Dimensions
555-19550 15" 1-3/8" 140WRMS 20Hz~20KHz 110 /220 VAC 27.5"(H)x 19"(W) x 15.4"(D)

Warranty
MCM Electronics warrants to theoriginal purchaser thatthesespeakers will befreefromdefects
inmaterials and workmanship for aperiod ofoneyear. Intheeventthat warrantyreplacementis
required, theunitwill bereplaced or repaired at thesolediscretionofMCM Electronics. Warranty
claims mustbeprocessed throughtheMCM Electronics customerservicedepartment.
This warrantydoesnotincludeserviceor parts to repair damagecaused byaccident, disaster,
misuse, abuse, or improperinstallation.This warrantyis inlieuofall other expressed warranties.
Iftheproductis defectiveinmaterials or workmanshipas warranted above, thepurchaser’s sole
remedyshall berepair or replacementas provided above. Inno eventwill MCM Electronics be
liablefor any incidental or consequential damages arising fromtheuseofthis product.
Stellar Labs
© 2012 MCM Electronics
www.mcmelectronics.com